瞬态瑞雷波在储罐地基密实度检测中的应用

Application of Rayleigh wave to detect subgrade compactness of storage tank

地基基础检测是工程勘察中的重要环节,现场钻孔取样测试、标准贯入试验等传统检测方法一般成本高、工序繁琐,而瑞雷波测试技术具有经济、高效和简单的技术特点。本文以唐山LNG接受站应急调峰保障工程为例,开展了瑞雷波测试技术在储罐地基勘察中的应用,研究了传统标准贯入试验击数与瑞雷波测试波速之间的关系。结果表明:瑞雷波检测与标准贯入试验结果吻合,满足工程应用要求,能有效地运用于工程实践中。

Ground and foundation detection plays an important role in engineering investigation.The traditional detection methods such as coring,standard penetration test(SPT)are expensive and tedious,but Rayleigh wave detection technique is economic,rapid and simple.The relationship between standard penetration test blow and Rayleigh wave velocity is discussed for the project of Tangshan LNG receiving station.It is found that the results of Rayleigh wave detection are in accord with the results from standard penetration test.Rayleigh wave detection could meet the engineering requirements and can be used in the field test.